CN203015096U

CN203015096U - Loudspeaker

Info

Publication number: CN203015096U
Application number: CN201220567929.9U
Authority: CN
Inventors: 张�雄; 吴三友
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd; AAC Optoelectronic Changzhou Co Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2012-10-31
Filing date: 2012-10-31
Publication date: 2013-06-19
Anticipated expiration: 2022-10-31

Abstract

The utility model relates to a loudspeaker. The loudspeaker comprises basin frame, an upper cover and a lower cover which cover the basin frame and enclose a chamber with the basin frame, a vibration system and a magnetic circuit system which are received by the chamber, and conductive terminals fixed on the basin frame, wherein the magnetic circuit system is provided with a lower clamp plate which is glued to the lower cover, the lower clamp plate includes a first face facing towards the interior of the loudspeaker and a second face opposite to the first face, a plurality of grooves are arranged on the periphery of the first face, and adjacent grooves are spaced by a flange. The loudspeaker provided by the utility model can solve the problem that while assembling the loudspeaker, the glue may seep into the loudspeaker through the gap between the lower clamp plate and the lower cover, thereby improving the yield.

Description

Loud speaker

Technical field

The utility model relates to a kind of loud speaker, particularly relates to a kind of loud speaker that is applied to portable electric appts.

Background technology

Loud speaker is as the critical elements of the equipment Source Music that provides sound to play, mobile phone, walkman etc., it is sent to sound wave signals user's ear, people arround the sound that can avoid the Audio Players material to produce has influence on, or can avoid sound to be listened to by the people that should not hear, therefore loud speaker is used in daily life quite frequently.

The cavity that the loud speaker of correlation technique comprises loudspeaker monomer and accommodates described loudspeaker monomer, described cavity comprises the basin frame and is covered on upper cover, the lower cover of described basin frame, described loudspeaker monomer has lower plate, and when assembling, described lower plate is glued at described lower cover.Because need are considered the error that assembling and parts are made, can reserve certain fit-up gap between lower plate and lower cover, but this structure makes easily glue infiltrate through in loud speaker, affects rate of finished products.

Therefore, being necessary to propose a kind of new vibration transducer overcomes the problems referred to above in fact.

The utility model content

When assembling for the prior art loud speaker, glue easily infiltrates, and affects the technical problem of rate of finished products, and the utility model provides a kind of can stop that glue infiltrates the structure of inside loudspeakers in fact for necessary.

A kind of loud speaker, it comprises the basin frame, is covered on described basin frame and surrounds upper cover and the lower cover of cavity, the conducting terminal that is contained in vibrational system and the magnetic circuit system in described cavity and is fixed in described basin frame with described basin frame, described magnetic circuit system has lower plate, described lower plate and described lower cover gummed, described lower plate comprises towards the first surface of described inside loudspeakers and relative with described first surface second, the periphery of described first surface offers several grooves, between described adjacent groove by the rib interval.

As further improvement of the utility model, described magnetic circuit system also comprises main magnet steel, around the secondary magnet steel of several bar shapeds of described main magnet steel setting and be arranged at pole piece on described main magnet steel and secondary magnet steel, described main magnet steel is fixed in the center of described first surface, and described secondary magnet steel is fixed in described groove.

As further improvement of the utility model, described rib has the extension outside the periphery that extends to described first surface.

As further improvement of the utility model, be covered with the cavity that is positioned at the middle part under described, described lower plate is contained in described cavity, and described extension is held in the upper surface of described lower cover.

Compared to prior art, lower plate at loud speaker of the present utility model has rib, utilize the gap between rib covering lower plate and lower cover, in the time of effectively solving equipped with loudspeaker, glue infiltrates the defective of inside loudspeakers from the gap between lower plate and lower cover, improves rate of finished products.

Description of drawings

Fig. 1 is the three-dimensional combination figure of the utility model loud speaker;

Fig. 2 is the three-dimensional exploded view of the utility model loud speaker;

Fig. 3 is the structural representation of the lower plate of the utility model loud speaker;

Fig. 4 is the secondary magnet steel of the utility model loud speaker and the three-dimensional structure diagram of lower plate;

Fig. 5 is that Fig. 1 is along the profile of A-A line.

Embodiment

Describe below in conjunction with the structure of accompanying drawing to the utility model loud speaker.

As shown in Figure 1 and Figure 2, the utility model loud speaker 1 comprise basin frame 101, be covered on described basin frame 101 and with described basin frame 101 surround cavity 10 upper cover 102 and lower cover 103, be contained in vibrational system 11 and the magnetic circuit system 12 in described cavity 10 and the conducting terminal 13 that is fixed in described basin frame 101.Described vibrational system 11 comprises vibrating diaphragm 111 and voice coil loudspeaker voice coil 112, and described magnetic circuit system 12 comprises lower plate 121, be arranged at the main magnet steel 122 on described lower plate 121 and the secondary magnet steel 123 of four bar shapeds arranging around described main magnet steel 122 and be arranged at pole piece 124 on described main magnet steel 122 and secondary magnet steel 123.Described lower cover 103 is provided with the cavity (not label) that is positioned at the middle part, and described lower plate 121 is contained in described cavity (not label).

As shown in Figure 3, Figure 4, described lower plate 121 comprises towards the first surface 1211 of described loud speaker 1 inside and second 1212 relative with described first surface 1211, the periphery of described first surface 1211 offers several grooves 1210 of outward opening, between described adjacent groove 1210, by rib 1213 intervals, described rib 1213 has the extension 1214 that extends to outside described first surface 1211.

as shown in Figure 5, during assembling, described main magnet steel 122 is fixed in the center of described first surface 1211, described secondary magnet steel 123 is fixed in described groove 1210 and part protrudes out to described groove 1210 outsides, described four ribs 1213 lay respectively between described four secondary magnet steel 123, described extension 1214 is held in the upper surface of described lower cover 103, and the part that described secondary magnet steel 123 protrudes out to groove 1210 outsides has hidden the gap between described lower plate 121 and described lower cover 103 just, like this, on the basis that does not affect magnetic circuit, effectively stoped the infiltration of glue, can improve the rate of finished products of loud speaker 1.

These are only preferred case study on implementation of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims

1. loud speaker, it comprises the basin frame, is covered on described basin frame and surrounds upper cover and the lower cover of cavity, the conducting terminal that is contained in vibrational system and the magnetic circuit system in described cavity and is fixed in described basin frame with described basin frame, described magnetic circuit system has lower plate, described lower plate and described lower cover gummed, it is characterized in that: described lower plate comprises towards the first surface of described inside loudspeakers and relative with described first surface second, the periphery of described first surface offers several grooves, between described adjacent groove by the rib interval.

2. loud speaker according to claim 1, it is characterized in that: described magnetic circuit system also comprises main magnet steel, around the secondary magnet steel of several bar shapeds of described main magnet steel setting and be arranged at pole piece on described main magnet steel and secondary magnet steel, described main magnet steel is fixed in the center of described first surface, and described secondary magnet steel is fixed in described groove.

3. loud speaker according to claim 2, it is characterized in that: described rib has the extension outside the periphery that extends to described first surface.

4. loud speaker according to claim 3 is characterized in that: be covered with the cavity that is positioned at the middle part under described, described lower plate is contained in described cavity, and described extension is held in the upper surface of described lower cover.